Ultra compact energy saving CFL lamps with triple-tube design give an ideal light source for small fixtures and downlighters. Biax T lamps allow more compact fixture designs with the same lumen output as Biax D lamps. They can also be used to deliver higher lumen output from existing designs. The Biax T & T/E lamps are electrically interchangeable with Biax D and D/E lamps. Light output ranges between 900 and 3200 lumens. Biax T/E lamps with a 4-pin electrical connection and without an internal starter are designed for high frequency electronic ballasts. The use of separate electronic ballasts makes them suitable for almost every kind of energy supply: high and low voltages, accumulators, batteries, solar cells and systems that can be dimmed. . Light BulbsGBP125575